Expansible link or adjustment member for bracelets, wristbands, wrist watches, and the like



April 16, 1935. s. STEINBERG EXPANSIBLE LINK OR ADJUSTMENT MEMBER FOR BRACELETS,

WRISTBANDS WRIST WATCHES, AND THE LIKE Filed Feb. 1, 1935 2 SheetsSheet l 1 N V EN TOR. Seyzzz'our 7 ORA/IE?v Apnfi 16, 1935. s. STEINBERG 1,997,836

EXPANSIBLE LINK OR ADJUSTMENT MEMBER FOR BRACELETS,

WRISTBANDS, WRIST WATCHES, AND THE LIKE Filed Feb. 1, 1955 2 Sheets-Sheet 2 I N VEN TOR k eymam A TTORNE Y.

Patented Apr. 1, 6, 1935 i UNITED STATES PATENT OFFICE EXPANSIBLE LINK OR ADJUSTMENT MEM- BER FOR BRACELETS, WRISTBANDS, WRIST WATCHES, AND THE LIKE Seymour Steinberg, Philadelphia, Pa.

Application February 1, 1935, Serial No. 4,453

2 Claims. (01. 24-68) The present invention relates to an adjustment Figure 4 represents a section on line 4-4 of link for bracelets and more particularly wrist Figure 2; watch bracelets or wrist watch straps, whereby Figure 5 represents a perspective view of the the circumferential dimension of the wrist watch, outer telescopic member;

5 (the watch and bracelet, or the watch and wrist- Figure 6' represents a perspective view of the 5 band combined) may be increased and decreased inner telescopic member, and at will, so as to permit the hand to be slipped Figure7 represents aperspective view of the dethrough and then to permit the circumferential tent spring. dimension to be decreased to the wrist dimension. According to the present invention, outer and.

A further object of the present invention is to inner telescopic members 8 and 9 are provided, 10 provide a device of this character which will be and formed preferably of sheet metal. The outdurable, effective and dependable in use. er member 8 is composed of the main body panel With the above and other objects in view, which ill, slightly curved in a longitudinal direction, so will appear from the following detailed descripas more or less to conform to the general curvation, the present invention consists of two teleture of the wrist, and along one of the longitudi- 15 scopically arranged members adapted to be disnal edges thereof t e i t-a r flan II s posed in slidable relation to each other, a spring formed, and the over-hanging flange I2 is formed tending at all times to move the two telescopicalin continuation thereof, and generally parallel to ly related members with respect to each other, the body panel l0, so as to form a parallel chanso as to extend their overall dimension in the nel-like space serving as one of the two guides for 20 direction of the circumference of the wrist band the inner telescopic member. or bracelet (of which the device is intended to Along the opposite longitudinal edge a similar form a part or a link), and a toothed rack carupright flange I3 is formed from which the overried by one of said members, and a spring-pressed hanging flange l4 extends in direct continuation pawl or detent carried by the other of said memthereof, and from which the flange I5 extends 25 bers, arranged to coact with each other so as to downwardly towards the body panel l0, thereby retain the two telescopically related members in forming a more or less closed channel or tube, any desired position with respect to each other serving as the other guide for the inner tele- (within the limits of adjustment) against the scopic member 9. The flange portion l5 does not force of the spring, and manually operable means extend quite to t e body p n l I, but extends to 30 whereby the pawl or detent member may be diswithin a short distance of it and more p t engaged from the toothed rack at will. larly a distance approximately the same as the The present invention further consists of other thickness of the b y Panel "5 f the inner telenovel features and details of construction, all of scopic member 9.

which will appear more fully from the followin The inner telescope member 9 is similarly 3;;

description, curved, as indicated particularly in Figures 3, 5 For the purpose of illustrating the invention, and 6, and is provided a o o o i s longitudithere is shown in the accompanying drawings a na d s w t the upright flange l1 and the overform thereof which is at present preferred, alhanging fl n 0 a portion '8, having t et 40 though it is to be understood that the various in- 9 formed in ts edge, inclined in Saw-fashion in 40 strumentalities of which the invention consists one d re t n. A lo ud al S ot 0 is formed can be variously arranged and organized and that in e flange portion IT for a Substantial P Of the invention is not limited to the precise ars e t Along the pp longitudinal ed e rangement and organization of the instrumenof the body panel 16 another flange 2| is formed.

talities as herein shown and described. The tubular portion along ne of the longitudi- 45 Referring to the drawings, in which like r fnal edges of the outer member 8 is closed by an erence characters indicate like parts: end wall 22 which serves as a spring abutment Figure 1 represents a rear view of the device and which may be formed of the flange l3 and embodying the present invention, shown partly bent over, while a corresponding spring abutment broken away, and showing the collapsed or con- 23 is formed on the member 9 by pressing up a 50 tracted position; small part of the body panel l6, as shown at 23. Figure 2 represents a similar view shown in an The opposite ends of the members 8 and 9 may expanded or in an extended position; be provided with suitable linking or connecting Figure 3 represents a side elevational view of means, such as tubular formations 24 and 25, the device in the extended position; rolled up out of the body panels, which may serve 55 A generally U-shaped retainer spring member 3| is formed of generally fiat metaLand is interposed between the two telescopic" members in a manner shown particularly in Figures'l, 2-, and 4.; The thickness of the sheet metal of which the spring 3| is formed is slightly greatertha'n the gap between the flange l5 and the body panel l0, and a pair of somewhat thinner anchorage members 32 and 33 are provided, projecting therefrom, which are thin enough to extendbetween the portions I5 and III of the outer tele s copicmember tas indicated particularly in Figuresl and'4.

The other side oithe, U -shaped spring is provided with' an anchorage toe 34,, and aflnger piece or knob 35,.and a detent orv pawl 36. The an chorage toe" 34 projects through a suitable opening ,3l in the. side flange I I, while the finger piece terms '35 extends through the slot, and then through another opening 38 in the side flange l l, whereby it rnz' yjbe depressed from without with the'flnger orwi'th the nail of a finger, there being" asIight-rECBSSj r depression 39 provided inthe endorthe' knob for nail engagement. The pawl or detent 35 "'coacts with the teeth IQ of the rack portionflt and serves to interlocktherewith in such famanner as to oppose the action oi the spring 30,] V

to press in slightly on the knob 35, thereby to disengage the pawl or detent 36 from the toothed rack I8 and the spring then automatically opens up the device to its outer limit of movement, which is determined by the end 40 of the slot 20, which engages the knob at its outermost position.

The invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it is therefore desired that the present embodiment be considered in all respects as illustrative and not restrictive, reference being had to the appended claims rather than to the foregoing description to indicatethe scope of the invention.

Having thus described the invention, what is hereby claimed as new and desired to be secured by Letters Patent, is:

1. An expansible link or adjustment member for bracelets, wrist bands, wrist watches, and the like, comprising a pair of telescopically related members; slidable with respect to each other, a springoperatively interposed between said two members tending to distend the same relative to each other,'and a manually operable springpressed pawl operatively related to said two members, tending automatically to lock the same in any desired position against the force of the first-mentioned spring, and capable of being rendered'inoperative by manual pressure from without. 3

'2. An expansible link or adjustment member forbracelets, wrist bands, wrist watches, and the like, comprising a pair of telescopically related members, sli'dable with respect to each other, a compression spring operatively interposed between said two members tending to distendthe same relative to each other, a toothed rack carried by one of said members, and a manually operable spring-pressed pawl carried by the other 01' said members in operative alignment with said rack, tending automatically to lock the same in any. desired position against the force of the firstmentioned spring, and capable of being rendered inoperative by manual pressure from without.

SEYMOUR STEINBERG. 

